diff options
Diffstat (limited to 'sound/pci/oxygen/oxygen.c')
| -rw-r--r-- | sound/pci/oxygen/oxygen.c | 314 |
1 files changed, 314 insertions, 0 deletions
diff --git a/sound/pci/oxygen/oxygen.c b/sound/pci/oxygen/oxygen.c new file mode 100644 index 000000000000..bfef5aba0b9d --- /dev/null +++ b/sound/pci/oxygen/oxygen.c @@ -0,0 +1,314 @@ +/* + * C-Media CMI8788 driver for C-Media's reference design and for the X-Meridian + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * + * + * This driver is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2. + * + * This driver is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this driver; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* + * SPI 0 -> 1st AK4396 (front) + * SPI 1 -> 2nd AK4396 (side) + * SPI 2 -> 3rd AK4396 (center/LFE) + * SPI 3 -> WM8785 + * SPI 4 -> 4th AK4396 (rear) + * + * GPIO 0 -> DFS0 of AK5385 + * GPIO 1 -> DFS1 of AK5385 + */ + +#include <sound/driver.h> +#include <linux/pci.h> +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/tlv.h> +#include "oxygen.h" + +MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); +MODULE_DESCRIPTION("C-Media CMI8788 driver"); +MODULE_LICENSE("GPL"); +MODULE_SUPPORTED_DEVICE("{{C-Media,CMI8788}}"); + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; +static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "card index"); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string"); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "enable card"); + +static struct pci_device_id oxygen_ids[] __devinitdata = { + { OXYGEN_PCI_SUBID(0x10b0, 0x0216) }, + { OXYGEN_PCI_SUBID(0x10b0, 0x0218) }, + { OXYGEN_PCI_SUBID(0x10b0, 0x0219) }, + { OXYGEN_PCI_SUBID(0x13f6, 0x0001) }, + { OXYGEN_PCI_SUBID(0x13f6, 0x0010) }, + { OXYGEN_PCI_SUBID(0x13f6, 0x8788) }, + { OXYGEN_PCI_SUBID(0x147a, 0xa017) }, + { OXYGEN_PCI_SUBID(0x14c3, 0x1710) }, + { OXYGEN_PCI_SUBID(0x14c3, 0x1711) }, + { OXYGEN_PCI_SUBID(0x1a58, 0x0910) }, + { OXYGEN_PCI_SUBID(0x415a, 0x5431), .driver_data = 1 }, + { OXYGEN_PCI_SUBID(0x7284, 0x9761) }, + { } +}; +MODULE_DEVICE_TABLE(pci, oxygen_ids); + +#define AK4396_WRITE 0x2000 + +/* register 0 */ +#define AK4396_RSTN 0x01 +#define AK4396_DIF_24_MSB 0x04 +/* register 1 */ +#define AK4396_SMUTE 0x01 +#define AK4396_DEM_OFF 0x02 +#define AK4396_DFS_MASK 0x18 +#define AK4396_DFS_NORMAL 0x00 +#define AK4396_DFS_DOUBLE 0x08 +#define AK4396_DFS_QUAD 0x10 + +/* register 0 */ +#define WM8785_OSR_SINGLE 0x000 +#define WM8785_OSR_DOUBLE 0x008 +#define WM8785_OSR_QUAD 0x010 +#define WM8785_FORMAT_LJUST 0x020 +#define WM8785_FORMAT_I2S 0x040 +/* register 1 */ +#define WM8785_WL_16 0x000 +#define WM8785_WL_20 0x001 +#define WM8785_WL_24 0x002 +#define WM8785_WL_32 0x003 + +static void ak4396_write(struct oxygen *chip, unsigned int codec, + u8 reg, u8 value) +{ + /* maps ALSA channel pair number to SPI output */ + static const u8 codec_spi_map[4] = { + 0, 4, 2, 1 + }; + oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER_WRITE | + OXYGEN_SPI_DATA_LENGTH_2 | + (codec_spi_map[codec] << OXYGEN_SPI_CODEC_SHIFT) | + OXYGEN_SPI_MAGIC, + AK4396_WRITE | (reg << 8) | value); +} + +static void wm8785_write(struct oxygen *chip, u8 reg, unsigned int value) +{ + oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER_WRITE | + OXYGEN_SPI_DATA_LENGTH_2 | + (3 << OXYGEN_SPI_CODEC_SHIFT), + (reg << 9) | value); +} + +static void ak4396_init(struct oxygen *chip) +{ + unsigned int i; + + chip->ak4396_reg1 = AK4396_DEM_OFF | AK4396_DFS_NORMAL; + for (i = 0; i < 4; ++i) { + ak4396_write(chip, i, 0, AK4396_DIF_24_MSB | AK4396_RSTN); + ak4396_write(chip, i, 1, chip->ak4396_reg1); + ak4396_write(chip, i, 2, 0); + ak4396_write(chip, i, 3, 0xff); + ak4396_write(chip, i, 4, 0xff); + } + snd_component_add(chip->card, "AK4396"); +} + +static void ak5385_init(struct oxygen *chip) +{ + oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, 0x0003); + oxygen_clear_bits16(chip, OXYGEN_GPIO_DATA, 0x0003); + snd_component_add(chip->card, "AK5385"); +} + +static void wm8785_init(struct oxygen *chip) +{ + wm8785_write(chip, 7, 0); + wm8785_write(chip, 0, WM8785_FORMAT_LJUST | WM8785_OSR_SINGLE); + wm8785_write(chip, 1, WM8785_WL_24); + snd_component_add(chip->card, "WM8785"); +} + +static void generic_init(struct oxygen *chip) +{ + ak4396_init(chip); + wm8785_init(chip); +} + +static void meridian_init(struct oxygen *chip) +{ + ak4396_init(chip); + ak5385_init(chip); +} + +static void generic_cleanup(struct oxygen *chip) +{ +} + +static void set_ak4396_params(struct oxygen *chip, + struct snd_pcm_hw_params *params) +{ + unsigned int i; + u8 value; + + value = chip->ak4396_reg1 & ~AK4396_DFS_MASK; + if (params_rate(params) <= 54000) + value |= AK4396_DFS_NORMAL; + else if (params_rate(params) < 120000) + value |= AK4396_DFS_DOUBLE; + else + value |= AK4396_DFS_QUAD; + chip->ak4396_reg1 = value; + for (i = 0; i < 4; ++i) { + ak4396_write(chip, i, 0, AK4396_DIF_24_MSB); + ak4396_write(chip, i, 1, value); + ak4396_write(chip, i, 0, AK4396_DIF_24_MSB | AK4396_RSTN); + } +} + +static void update_ak4396_volume(struct oxygen *chip) +{ + unsigned int i; + + for (i = 0; i < 4; ++i) { + ak4396_write(chip, i, 3, chip->dac_volume[i * 2]); + ak4396_write(chip, i, 4, chip->dac_volume[i * 2 + 1]); + } +} + +static void update_ak4396_mute(struct oxygen *chip) +{ + unsigned int i; + u8 value; + + value = chip->ak4396_reg1 & ~AK4396_SMUTE; + if (chip->dac_mute) + value |= AK4396_SMUTE; + for (i = 0; i < 4; ++i) + ak4396_write(chip, i, 1, value); +} + +static void set_wm8785_params(struct oxygen *chip, + struct snd_pcm_hw_params *params) +{ + unsigned int value; + + wm8785_write(chip, 7, 0); + + value = WM8785_FORMAT_LJUST; + if (params_rate(params) == 96000) + value |= WM8785_OSR_DOUBLE; + else if (params_rate(params) == 192000) + value |= WM8785_OSR_QUAD; + else + value |= WM8785_OSR_SINGLE; + wm8785_write(chip, 0, value); + + if (snd_pcm_format_width(params_format(params)) <= 16) + value = WM8785_WL_16; + else + value = WM8785_WL_24; + wm8785_write(chip, 1, value); +} + +static void set_ak5385_params(struct oxygen *chip, + struct snd_pcm_hw_params *params) +{ + unsigned int value; + + if (params_rate(params) <= 54000) + value = 0; + else if (params_rate(params) <= 108000) + value = 1; + else + value = 2; + oxygen_write16_masked(chip, OXYGEN_GPIO_DATA, value, 0x0003); +} + +static const DECLARE_TLV_DB_LINEAR(ak4396_db_scale, TLV_DB_GAIN_MUTE, 0); + +static const struct oxygen_model model_generic = { + .shortname = "C-Media CMI8788", + .longname = "C-Media Oxygen HD Audio", + .chip = "CMI8788", + .owner = THIS_MODULE, + .init = generic_init, + .cleanup = generic_cleanup, + .set_dac_params = set_ak4396_params, + .set_adc_params = set_wm8785_params, + .update_dac_volume = update_ak4396_volume, + .update_dac_mute = update_ak4396_mute, + .dac_tlv = ak4396_db_scale, +}; +static const struct oxygen_model model_meridian = { + .shortname = "C-Media CMI8788", + .longname = "C-Media Oxygen HD Audio", + .chip = "CMI8788", + .owner = THIS_MODULE, + .init = meridian_init, + .cleanup = generic_cleanup, + .set_dac_params = set_ak4396_params, + .set_adc_params = set_ak5385_params, + .update_dac_volume = update_ak4396_volume, + .update_dac_mute = update_ak4396_mute, + .dac_tlv = ak4396_db_scale, + .record_from_dma_b = 1, +}; + +static int __devinit generic_oxygen_probe(struct pci_dev *pci, + const struct pci_device_id *pci_id) +{ + static int dev; + const struct oxygen_model *model; + int err; + + if (dev >= SNDRV_CARDS) + return -ENODEV; + if (!enable[dev]) { + ++dev; + return -ENOENT; + } + model = pci_id->driver_data ? &model_meridian : &model_generic; + err = oxygen_pci_probe(pci, index[dev], id[dev], model); + if (err >= 0) + ++dev; + return err; +} + +static struct pci_driver oxygen_driver = { + .name = "CMI8788", + .id_table = oxygen_ids, + .probe = generic_oxygen_probe, + .remove = __devexit_p(oxygen_pci_remove), +}; + +static int __init alsa_card_oxygen_init(void) +{ + return pci_register_driver(&oxygen_driver); +} + +static void __exit alsa_card_oxygen_exit(void) +{ + pci_unregister_driver(&oxygen_driver); +} + +module_init(alsa_card_oxygen_init) +module_exit(alsa_card_oxygen_exit) |